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Original Question
When Professor Sum was asked by Mr. Little how many students were in his classes, he answered, “All of them study either langua...Asked by dan
When Professor Sum was asked by Mr. Little how many students were in his classes, he answered,
“All of them study either languages, physics, or not at all. One-half of them study languages only,
one-fourth of them study French, one-seventh of them study physics only, and 20 do not study at
all.” How many students does Professor Sum have?
“All of them study either languages, physics, or not at all. One-half of them study languages only,
one-fourth of them study French, one-seventh of them study physics only, and 20 do not study at
all.” How many students does Professor Sum have?
Answers
Answered by
Frenchy
Professor Sum has 56 students.
28 of then study languages - one half
(14 of which study French)
8 study physics - one-seventh
20 do not study at all.
28 of then study languages - one half
(14 of which study French)
8 study physics - one-seventh
20 do not study at all.
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